Seiko Cal. 3870 - 172

This Spring Drive model from 1966 features a 39mm Hardlex-Coated Steel case. Powered by the 3870 caliber with 17j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-86bc68cb424c]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1966

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